As part of the list of eco-friendly technologies pursued by Nissan under the Nissan Green Program 2010, a next-generation fuel cell stack which improved upon the first version was recently introduced. The Nissan fuel cell stack uses Membrane Electrode Assembly (MEA) technology to double power density through the improved conductivity of its densely-packed cell structure. To be able to achieve the desired density, the carbon separators commonly used for assemblies were replaced with thin metal separators. The separators are coated with a substance which improves conductivity, efficiency, and durability.

Because the material used as electrode is more durable than the material used for other fuel cells, the platinum (a key component) used for the Nissan fuel cell is reduced by 50 percent. As such, due to the thinner separators used, there is a considerable reduction in size from 90L to 68L, and due to the 50 percent less platinum used, there's also a big reduction in costs.